vcn_v3_0_dec_ring_get_wptr(9)

✨ vcn_v3_0_dec_ring_get_wptr ✨

okay bestie, welcome to the Kernel API Manual 💅 this one's a lil function called vcn_v3_0_dec_ring_get_wptr, and honestly? it's giving "small but mighty." let's get into it 🫶

---

🌸 NAME 🌸

vcn_v3_0_dec_ring_get_wptr — literally just get write pointer, that's the whole vibe 🎀

---

🦋 SYNOPSIS 🦋

uint64_t vcn_v3_0_dec_ring_get_wptr (struct amdgpu_ring *ring );

so you call it, you hand it a ring, and it hands you back a uint64_t. no cap, that's it 💖

---

🎀 ARGUMENTS 🎀

• ring — an amdgpu_ring pointer, aka the ring you're asking about. that's the one and only thing you pass in 🌀

---

💜 DESCRIPTION 💜

okay so here's the tea ☕: this function returns the current hardware write pointer. that's it. that's the whole description. iconic, honestly — no notes, no caveats, no weird edge cases mentioned. main character energy for a getter 🔥

---

⭐ SEE ALSO ⭐

the kernel file where this lil guy lives:

• ./drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c

and the whole friend group (iykyk) 💫:

• vcn_v3_0_early_init(9)
• vcn_v3_0_sw_init(9)
• vcn_v3_0_sw_fini(9)
• vcn_v3_0_hw_init(9)
• vcn_v3_0_hw_fini(9)
• vcn_v3_0_suspend(9)
• vcn_v3_0_resume(9)
• vcn_v3_0_mc_resume(9)
• vcn_v3_0_disable_clock_gating(9)
• vcn_v3_0_enable_clock_gating(9)
• vcn_v3_0_dec_ring_get_rptr(9)
• vcn_v3_0_dec_ring_set_wptr(9)
• vcn_v3_0_enc_ring_get_rptr(9)
• vcn_v3_0_enc_ring_get_wptr(9)
• vcn_v3_0_enc_ring_set_wptr(9)

ngl the sibling energy here is unmatched — get_rptr, get_wptr, set_wptr, dec ring, enc ring… a whole family tree 🧚‍♀️

---

💌 okay that's the page!! this one came from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it's part of the Kernel API Manual — slay, go read the source, mwah 🍓💅